Press Release

Osmetech plc ('Osmetech' or the 'Company')

Change of Adviser

21 July 2008

The Board of Osmetech plc (the 'Company') is pleased to announce the appointment of Canaccord Adams Limited as the Nominated Adviser and Broker to the Company with immediate effect.

Enquiries:

Osmetech plc +44 (0)20 7849 6027

David Sandilands, Chief Financial Officer

Canaccord Adams Limited

Nominated Adviser +44 (0)20 7050 6500

Robert Finlay / L. Warren Pimm

Madano Partnership +44 (0) 207 593 4000

Matthew Moth, Mark Way